IT1075849B - DISCHARGE ELECTRIC BULB - Google Patents

DISCHARGE ELECTRIC BULB

Info

Publication number
IT1075849B
IT1075849B IT25878/77A IT2587877A IT1075849B IT 1075849 B IT1075849 B IT 1075849B IT 25878/77 A IT25878/77 A IT 25878/77A IT 2587877 A IT2587877 A IT 2587877A IT 1075849 B IT1075849 B IT 1075849B
Authority
IT
Italy
Prior art keywords
discharge electric
electric bulb
bulb
discharge
electric
Prior art date
Application number
IT25878/77A
Other languages
Italian (it)
Original Assignee
Thorn Electrical Ind Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from GB30007/76A external-priority patent/GB1589472A/en
Application filed by Thorn Electrical Ind Ltd filed Critical Thorn Electrical Ind Ltd
Application granted granted Critical
Publication of IT1075849B publication Critical patent/IT1075849B/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/04—Electrodes; Screens; Shields
    • H01J61/045—Thermic screens or reflectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/04—Electrodes; Screens; Shields
    • H01J61/06—Main electrodes
    • H01J61/067—Main electrodes for low-pressure discharge lamps
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/36—Seals between parts of vessels; Seals for leading-in conductors; Leading-in conductors
    • H01J61/366—Seals for leading-in conductors
IT25878/77A 1976-07-19 1977-07-19 DISCHARGE ELECTRIC BULB IT1075849B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB30007/76A GB1589472A (en) 1976-07-19 1976-07-19 Fluorescent lamps
GB4200476 1976-10-08

Publications (1)

Publication Number Publication Date
IT1075849B true IT1075849B (en) 1985-04-22

Family

ID=26260209

Family Applications (1)

Application Number Title Priority Date Filing Date
IT25878/77A IT1075849B (en) 1976-07-19 1977-07-19 DISCHARGE ELECTRIC BULB

Country Status (9)

Country Link
US (1) US4204137A (en)
JP (1) JPS5314379U (en)
AU (1) AU512916B2 (en)
CA (1) CA1092636A (en)
DE (1) DE2732060C2 (en)
FR (1) FR2359505A1 (en)
IT (1) IT1075849B (en)
NL (1) NL184813C (en)
NZ (2) NZ195863A (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1213933A (en) * 1983-04-01 1986-11-12 Andre C. Bouchard Metal arc director for compact fluorescent lamp
US4678520A (en) * 1983-04-04 1987-07-07 Gte Products Corporation Electrical lead-ins for use for arc sustaining atmospheres
US4908546A (en) * 1988-06-27 1990-03-13 Gte Products Corporation Lead-in wire for compact fluorescent lamps
US4870323A (en) * 1988-07-13 1989-09-26 Gte Products Corporation Method of dispensing mercury into an arc discharge lamp
DE4327535A1 (en) * 1993-08-16 1995-02-23 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh High-pressure discharge lamp with ceramic discharge tube
US5686795A (en) * 1995-10-23 1997-11-11 General Electric Company Fluorescent lamp with protected cathode to reduce end darkening
DE69526657T2 (en) * 1995-12-01 2003-02-06 Koninklijke Philips Electronics N.V., Eindhoven Low-pressure discharge lamp
US6445118B1 (en) * 1999-03-30 2002-09-03 Matsushita Electric Industrial Co., Ltd. Lamp having conductor structure and non-conductor structure provided between filaments
JP2004509437A (en) * 2000-09-14 2004-03-25 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ Fluorescent lamp and method of manufacturing the same
US7692388B2 (en) * 2006-02-09 2010-04-06 Honeywell International Inc. Methods and apparatus for reducing radio frequency emissions in fluorescent light lamps
US8134294B2 (en) * 2010-05-25 2012-03-13 General Electric Company Low pressure discharge lamps with coated inner wires for improved lumen maintenance

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2000395A (en) * 1931-12-22 1935-05-07 Ned Herbert Mann Glowlamp
DE764835C (en) * 1939-05-13 1954-05-24 Aeg Power supply for discharge vessels made of glass
DE911408C (en) * 1940-11-30 1954-05-13 Patra Patent Treuhand Electric low-pressure discharge tubes, in particular mercury-vapor fluorescent tubes
FR961959A (en) * 1947-02-05 1950-05-26
US2769112A (en) * 1953-06-11 1956-10-30 Westinghouse Electric Corp Discharge lamp, mount therefor, and method
US3069580A (en) * 1953-10-28 1962-12-18 Sylvania Electric Prod Fluorescent lamp
BE558298A (en) * 1956-06-13
US2945977A (en) * 1957-03-28 1960-07-19 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Fluorescent glow discharge lamp
US2961566A (en) * 1958-06-18 1960-11-22 Sylvania Electric Prod Fluorescent lamp
US3249788A (en) * 1961-11-08 1966-05-03 Westinghouse Electric Corp Electrode coating material and discharge device
US3706895A (en) * 1971-02-17 1972-12-19 Gen Electric Fluorescent lamp having coated inleads
US3826946A (en) * 1973-05-24 1974-07-30 Gen Electric Vapor discharge lamp electrode having carbon-coated areas
GB1415957A (en) * 1973-06-01 1975-12-03 Gen Electric Co Ltd Low pressure mercury vapour fluorescent electric discharge almps
US4013914A (en) * 1975-11-26 1977-03-22 North American Philips Corporation electrode protecting means for electric discharge lamps

Also Published As

Publication number Publication date
NL7707993A (en) 1978-01-23
JPS5314379U (en) 1978-02-06
FR2359505B1 (en) 1982-11-26
AU512916B2 (en) 1980-11-06
DE2732060A1 (en) 1978-01-26
NZ195863A (en) 1983-06-14
FR2359505A1 (en) 1978-02-17
DE2732060C2 (en) 1986-06-12
US4204137A (en) 1980-05-20
NZ184685A (en) 1983-06-14
AU2715277A (en) 1979-01-25
CA1092636A (en) 1980-12-30
NL184813C (en) 1989-11-01

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